h3 {
    text-align: center; margin-bottom: 10;
}
[class*='col-'] {
    padding-right: 20px;
    padding-bottom: 20px;
}
.module {
    padding: 20px;
    text-align: center;
    color: #eee;
    max-height: 120px;
    min-width: 120px;
    background-color: orangered;
    border-radius: 2px;
}

.module:hover {
    background-color: darkred;
    cursor: pointer;
    color: white;
}